Improvement in leather-splitting machines



H. 8L J. SAUERBIER. Leemth(ar-Splitting Machine.

No; 221,866. Patented Nov, 18, 1879.

z am fm UNITED STATEs PATENT HENRY SAUERBIER AND JULIS SAUERBIER, OF NEARK, NEWT JERSEY.

IMPROVEMENT IN LEATHER-SPLITTING MACHINES.

Specification forming part of Letters Patent N0. 221,866, dated November 18, 1879 application filed Api-II 14, 1879.

To all whom 'it may concern Be it known that we, HENRY SAUERBIER and JULIUs SAUERBIER, both of the city of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements iII Leather-Splitting Machines for VShoemakers7 Use; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Our invention relates to an improvement in leather-splitting machines for shoemakers and others use; and it consists in the construction and combination of certain parts, as will be rst described, and then pointed out in the l claims.

Figure l of the drawings is a plan of a splittingmachine constructed with our imirovements and FiO. 2 a transverse section on l 7 s the line m .r in Fig. l.

A is the bed of the machine, composed of side plates and cross-bars, all cast in one piece. To the rear corners, at B, are pivoted two levers, C, cast in one piece, with three crossbars, G', and the handle C, the whole forining the knife-carriage.

D is the knife, secured to the front bar, C', `by screws in the usual way. E is a spring, inserted between one of the cross-bars of the bed A and the central cross-bar, C', of the knife-carriage, to press the knife up toward the gage-roll F 5 and G is a gage-screw to set the knife at any desired distance from the roll F. I are the bearings of the roll F, secured to the top ot' frame A, and a is the india-rubber pressure-roll, mounted on a shaft, b, which is carried by a spring-plate, c. The springplate c is connected at d to the rear cross-bar, C', of the knife-carriage, the cross-bar having a slotted plate, e, rst secured to it to form a hinge, by which means the rubber roll can be set at any desired position in relation to the edge of the knife.

A spring, s, is inserted between the crossbar C and the under side of spring-plate c, to keep the rubber roll up against the gage-roll.

To limit its upward movement, the springplate is provided on top with ears f, through which screws g are inserted in the tops of the levers G.

The handle C of the knife-carriage projects from the front of the machine, and is cast with holes to receive a cord or thong, h, t0 connect the knife-carriage with a treadle, by which the knife may be depressed when inserting the leather l under the gage-roll. A pair of tongs, T, is shown attached to the split S, the balance of the leather m falling through the open bottom of the bed or frame A.

The use of the rubber roll presents great advantages over the metallic pressure-roll in ordinary use, as it insures a perfectlyr uniform thickness of the leather when split, and entirely prevents the knife from running out of the leather or cutting through it by holding the same closely against the gage-roll F, whatever variations may occur in the saine piece of leather.

To secure these results it is not necessary that the rubber roll should be placed below; but the knife and gage-roll may be inverted, as in some hand slilitting-machines, and the rubber roll placed on the top.

XV e are aware that an elastic roller has been used in a machine for splitting hides in place ot' a solid bearing-bed, and also to press the hide down on a screw-roller. We do not therefore limit ourselves to the precise arrangement of the rubber roll herein shown, but claim the same in the following manner:

l. The herein-described knife-carriage, pivoted at B to the rear corners of the frame A, in combination with the gage-roll secured upon the top of frame A, and the gage-screw inserted through the front of the frame A, and handle C of pivoted carriage, and for the purpose herein set forth.

2. The leather-splitting machine, construct-` ed with stationary gage-roll F, hinged knifecarriage adapted to be adjusted by gagescrew Gr, and pressure-roll a, carried by the sprin g-plate c, hinged upon lthe knife-carriage, substantially as and for the purpose set forth 3. In a leather-splitting machine, the frame A, pivoted knife-carriage, cross-bar C', springs E S, hinged spring-plate c, levers C O, rolls F and d, and knife, all constructed and adapted In testimony that we claim the foregoing we for operation as herein specified. have hereunto set our hands and seals this 10th 4:. The combination, in a leather-splitting day of' April, 1879. machine, of the knife carried in a hinged HENRY SAUERBIER [L q] frame, the elastic roll carried in a frame hinged to the said knife-carrier, the horizon- JULIUS SAUERBIER' lL' S'l tally-adjustable gage-roll F, and the springs Vitnesses:

E and S, all arranged with relation to each OLIVER DRAKE7 other, and operating as herein specified. CHARLES H. PELL. 

